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authorDaniel Vetter <daniel.vetter@ffwll.ch>2013-08-08 15:41:34 +0200
committerDave Airlie <airlied@redhat.com>2013-08-19 14:29:24 +1000
commitcb6458f97b53d7f73043206c18014b3ca63ac345 (patch)
tree3494b20eb61635f9ba5905e4ed19375e478ad26c /drivers/gpu/drm/drm_drv.c
parent7d14bb6b537414ffe6a8641cb14088465c28460d (diff)
downloadlinux-cb6458f97b53d7f73043206c18014b3ca63ac345.tar.bz2
drm: remove procfs code, take 2
So almost two years ago I've tried to nuke the procfs code already once before: http://lists.freedesktop.org/archives/dri-devel/2011-October/015707.html The conclusion was that userspace drivers (specifically libdrm device node detection) stopped relying on procfs in 2001. But after some digging it turned out that the drmstat tool in libdrm is still using those files (but only when certain options are set). So we've decided to keep profcs. But I when I've started to dig around again what exactly this tool does I've noticed that it tries to read the "mem", "vm", and "vma" files from procfs. Now as far my git history digging shows "mem" never did anything useful (at least in the version that first showed up in upstream history in 2004) and the file was remove in commit 955b12def42e83287c1bdb1411d99451753c1391 Author: Ben Gamari <bgamari@gmail.com> Date: Tue Feb 17 20:08:49 2009 -0500 drm: Convert proc files to seq_file and introduce debugfs Which means that for over 4 years drmstat has been broken, and no one cared. In my opinion that's proof enough that no one is actually using drmstat, and so that we can savely nuke the procfs support from drm. While at it fix up the error case cleanup for debugfs in drm_get_minor. v2: Fix dates, libdrm stopped relying on procfs for drm node detection in 2001. v3: fixup compilation warning for !CONFIG_DEBUG_FS, reported by Fengguang Wu. Cc: kbuild test robot <fengguang.wu@intel.com> Cc: Dave Airlie <airlied@linux.ie> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_drv.c')
-rw-r--r--drivers/gpu/drm/drm_drv.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 357a14ea3cb0..cf40be42baf6 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -238,13 +238,6 @@ static int __init drm_core_init(void)
goto err_p2;
}
- drm_proc_root = proc_mkdir("dri", NULL);
- if (!drm_proc_root) {
- DRM_ERROR("Cannot create /proc/dri\n");
- ret = -1;
- goto err_p3;
- }
-
drm_debugfs_root = debugfs_create_dir("dri", NULL);
if (!drm_debugfs_root) {
DRM_ERROR("Cannot create /sys/kernel/debug/dri\n");
@@ -267,7 +260,6 @@ err_p1:
static void __exit drm_core_exit(void)
{
- remove_proc_entry("dri", NULL);
debugfs_remove(drm_debugfs_root);
drm_sysfs_destroy();